Sponsor challenges
Define real challenges that reflect the work your organization actually needs. Set scope, witnesses, and evaluation criteria.

Stop relying on self-reported claims and snapshot assessments. Sponsor real challenges, witness real work, and discover contributors with proven capability.
Define real challenges that reflect the work your organization actually needs. Set scope, witnesses, and evaluation criteria.
Your team or designated attestors observe contributions in real-time within the witnessed workspace.
Access sealed, tamper-evident evidence — diffs, reviews, artifacts — linked to each contributor's work.
Cryptographically verify any contributor's credentials without accessing their private work product.
Find contributors whose witnessed evidence matches your needs. Engage based on proof, not claims.
Review a contributor's proven credentials through the verification console. Zero-knowledge proofs confirm authenticity without revealing private work product.